... color,growth. 3. Promote protein synthesis,fat break. Betaine HCL 98%CAS NO: 590-46-5Molecular Formula/Weight:C5H11NO2HCl=153.61Appearance ... meat color.- Chickens: It can promote protein synthesis and fat breakdown, increasing the rate of chicken chest muscle and reducing rate ... .5 – 1 kg per ton of complete feed. Betaine HCL 98%